//NC61 两数之和
int* twoSum(int* numbers, int numbersLen, int target, int* returnSize ) {
    // write code here
    int*ret=(int*)malloc(sizeof(int)*2);
    *returnSize=2;
    for(int i=0;i<numbersLen;i++)
    {
        if(numbers[i]>target)
        continue;
        for(int k=i+1;k<numbersLen;k++)
        {
            if(numbers[i]+numbers[k]==target)
            {
                ret[0]=i+1;
                ret[1]=k+1;
                return ret;
            }
        }
    }
    *returnSize=0;
     return NULL;
}